Pulsed particle beam vacuum-to-air interface

Cruz, Gilbert E; Edwards, William F

Title: Pulsed particle beam vacuum-to-air interface

Full Record
Other Related Research

Abstract

A vacuum-to-air interface (10) is provided for a high-powered, pulsed particle beam accelerator. The interface comprises a pneumatic high speed gate valve (18), from which extends a vacuum-tight duct (26), that termintes in an aperture (28). Means (32, 34, 36, 38, 40, 42, 44, 46, 48) are provided for periodically advancing a foil strip (30) across the aperture (28) at the repetition rate of the particle pulses. A pneumatically operated hollow sealing band (62) urges foil strip (30), when stationary, against and into the aperture (28). Gas pressure means (68, 70) periodically lift off and separate foil strip (30) from aperture (28), so that it may be readily advanced.

Inventors:

Cruz, Gilbert E ^[1]; Edwards, William F ^[2]

Pleasanton, CA
Livermore, CA

Issue Date:: 1988-01-01

Research Org.:: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

OSTI Identifier:: 866780

Patent Number(s):: 4785254

Assignee:: United States of America as represented by United States (Washington, DC)

Patent Classifications (CPCs):: H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01J - ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS

Show more

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01J - ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
H01J5/18 - Windows permeable to X-rays, gamma-rays, or particles

Show less

DOE Contract Number:: W-7405-ENG-48

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: pulsed; particle; beam; vacuum-to-air; interface; 10; provided; high-powered; accelerator; comprises; pneumatic; speed; gate; valve; 18; extends; vacuum-tight; duct; 26; termintes; aperture; 28; means; 32; 34; 36; 38; 40; 42; 44; 46; 48; periodically; advancing; foil; strip; 30; repetition; rate; pulses; pneumatically; operated; hollow; sealing; band; 62; urges; stationary; gas; pressure; 68; 70; lift; separate; readily; advanced; foil strip; beam accelerator; repetition rate; particle beam; gas pressure; gate valve; pneumatically operated; pulsed particle; vacuum-to-air interface; air interface; interface comprises; /315/313/

Citation Formats


                    Cruz, Gilbert E, and Edwards, William F. Pulsed particle beam vacuum-to-air interface.  United States: N. p., 1988. 
        Web.

Copy to clipboard


                    Cruz, Gilbert E, & Edwards, William F. Pulsed particle beam vacuum-to-air interface.  United States.

Copy to clipboard


                    Cruz, Gilbert E, and Edwards, William F. Fri .  
        "Pulsed particle beam vacuum-to-air interface".  United States.  https://www.osti.gov/servlets/purl/866780.

Copy to clipboard


                    
@article{osti_866780,

  title        = {Pulsed particle beam vacuum-to-air interface},

  author       = {Cruz, Gilbert E and Edwards, William F},

  abstractNote = {A vacuum-to-air interface (10) is provided for a high-powered, pulsed particle beam accelerator. The interface comprises a pneumatic high speed gate valve (18), from which extends a vacuum-tight duct (26), that termintes in an aperture (28). Means (32, 34, 36, 38, 40, 42, 44, 46, 48) are provided for periodically advancing a foil strip (30) across the aperture (28) at the repetition rate of the particle pulses. A pneumatically operated hollow sealing band (62) urges foil strip (30), when stationary, against and into the aperture (28). Gas pressure means (68, 70) periodically lift off and separate foil strip (30) from aperture (28), so that it may be readily advanced.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1988},

  month        = {1}

}

Copy to clipboard

Patent:

View Patent

Save / Share:

Export Metadata

Save to My Library

Similar Records in DOE Patents and OSTI.GOV collections:

Pulsed particle beam vacuum-to-air interface

Patent Cruz, G E; Edwards, W F

A vacuum-to-air interface is provided for a high-powered, pulsed particle beam accelerator. The interface comprises a pneumatic high speed gate valve, from which extends a vacuum-tight duct, that terminates in an aperture. Means are provided for periodically advancing a foil strip across the aperture at the repetition rate of the particle pulses. A pneumatically operated hollow sealing band urges foil strip, when stationary, against and into the aperture. Gas pressure means periodically lift off and separate foil strip from aperture, so that it may be readily advanced. 5 figs.
Vacuum chamber for containing particle beams

Patent Harvey, Alexander [Los Alamos, NM]

A vacuum chamber for containing a charged particle beam in a rapidly changing magnetic environment comprises a ceramic pipe with conducting strips oriented along the longitudinal axis of the pipe and with circumferential conducting bands oriented perpendicular to the longitudinal axis but joined with a single longitudinal electrical connection. When both strips and bands are on the outside of the ceramic pipe, insulated from each other, a high-resistance conductive layer, such as nickel can be coated on the inside of the pipe.
Full Text Available
Method and split cavity oscillator/modulator to generate pulsed particle beams and electromagnetic fields

Patent Clark, M Collins [Albuquerque, NM]; Coleman, P Dale [Albuquerque, NM]; Marder, Barry M [Albuquerque, NM]

A compact device called the split cavity modulator whose self-generated oscillating electromagnetic field converts a steady particle beam into a modulated particle beam. The particle beam experiences both signs of the oscillating electric field during the transit through the split cavity modulator. The modulated particle beam can then be used to generate microwaves at that frequency and through the use of extractors, high efficiency extraction of microwave power is enabled. The modulated beam and the microwave frequency can be varied by the placement of resistive wires at nodes of oscillation within the cavity. The short beam travel length through themore »« less
Full Text Available
Vacuum-actuated percutaneous insertion/implantation tool for flexible neural probes and interfaces

Patent Sheth, Heeral; Bennett, William J.; Pannu, Satinderpall S.; ...

A flexible device insertion tool including an elongated stiffener with one or more suction ports, and a vacuum connector for interfacing the stiffener to a vacuum source, for attaching the flexible device such as a flexible neural probe to the stiffener during insertion by a suction force exerted through the suction ports to, and to release the flexible device by removing the suction force.
Full Text Available
Miniature pulsed vacuum arc plasma gun and apparatus for thin-film fabrication

Patent Brown, Ian G [Berkeley, CA]; MacGill, Robert A [Richmond, CA]; Galvin, James E [Emmeryville, CA]; ...

A miniature (dime-size in cross-section) vapor vacuum arc plasma gun is described for use in an apparatus to produce thin films. Any conductive material can be layered as a film on virtually any substrate. Because the entire apparatus can easily be contained in a small vacuum chamber, multiple dissimilar layers can be applied without risk of additional contamination. The invention has special applications in semiconductor manufacturing.
Full Text Available

Similar Records